personly i found my old 2000 model wr400 a lot more reliable than my xr400 99 model (spat the gearbox)or ktm530 08 model ( something all the time)and have seen plenty of drz s brake down on trail rides think computer forums like them just my opionion reckon the klx450 s crack but not sure about reliability have nt seen any high klm ones(have not herd of any problems but).what ever you get will be the best because every one reckons that even xr rider s and especialy ktm riders ,go the yamy :woohoo: